[T-Mobile LG G2x] richua:
Here's a list of what I did to get up and running within a few minutes.

Make a nandroid.

Download Script Manager https://market.android.com/details?id=os.tools.scriptmanager

If you use ADW or ADW EX as a launcher, download the appropriate file to your SD card from the OP of this thread. Continue to step 6.

If you use LauncherPro/LauncherPro Plus or GO Launcher, download the text file from OP of the linked thread titled "V6_SuperCharger_for_Android-update8.sh.txt" either to your phone (if you have a text editor) or to your computer (if you don't). Here's the link: http://xdaforums.com/attachment.php?attachmentid=661892&d=1311292674

Open the text file. If you have a "find" feature, look for where it says "com.android.launcher". If you're on your phone and/or don't have a "find" feature, scroll down (not too far from the top) to a line that starts with "launcheradj=" and that's where you'll find "com.android.launcher". Replace com.android.launcher with either com.fede.launcher if you're using LP/LPP or com.gau.go.launcherex if you're using GO Launcher. Make sure you don't delete that space between "pidof" and "com.whateverYou'reUsing", and don't delete that tick mark right after it. Save and exit. If you did this on your computer, upload this file to your phone. (Note: if you are using a launcher not described here, you'll have to find the process name yourself and enter it as instructed above)

Open Script Manager and locate where you just stored that file. Long press on it, select "Open As ...", select "Script/Executable." In the box that pops up, check "Run as root" and then hit "Run" in the top left. The script will now be run. The first prompt will be for scrolling speed. Touch the screen to bring up the soft keyboard. Type the number corresponding to which scroll speed you like and hit enter.

You are now inside the script. IF YOU DID NOT READ ANY OF THE LINKED THREAD, type 8 at the main menu prompt and hit enter on the keyboard, wait for it to do some work and automatically return to the main menu prompt, then type 11 and hit enter and wait, then hit 17 and enter and wait. 17 is the exit command so you'll now see on the top left a button that says "Close." Hit that and then back out of Script Manager, then go to step 9.

If you did read the linked thread, you'll know a little bit more about what each option is. Feel free to experiment. To select an option, type the number of the option and hit enter on the keyboard. Current recommendations are both 8 and 11. Once you are done, type 17 followed by an enter, then hit "Close" in the top left and back out of Script Manager.

Provided you followed the instructions and did not encounter any weird errors in any step, the settings you selected are now active. Nothing else is required. Enjoy your snappy new setup.

I rolled back my settings and typed this list up as I started over from scratch so this almost literally is each and every step I took to get things running. If you have download errors, I suggest not using the XDA app and downloading instead from a standard browser. Make sure you are clicking on the right file. If you didn't read the linked thread and are unsure about proceeding, you should read the linked thread. If you read the linked thread and still are unsure, download the Autokiller app and choose the "optimum" setting there.